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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Brian,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I have a Ham guy working with me.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Contact me off line. <a href="mailto:hc.fulton@gmail.com">hc.fulton@gmail.com</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hugh</span><span lang=EN-NZ style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>Brian Cox via Personal_Submersibles<br><b>Sent:</b> Sunday, 8 March 2015 10:10 a.m.<br><b>To:</b> Personal Submersibles General Discussion<br><b>Subject:</b> Re: [PSUBS-MAILIST] Gamma ring machining<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hey Alan,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> Do you know any Ham radio guys down there ?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Brian,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>KK6IRC<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <o:p></o:p></span></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>73<br><br>--- <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:<br><br>From: Alan James via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>Subject: Re: [PSUBS-MAILIST] Gamma ring machining<br>Date: Sat, 7 Mar 2015 19:09:51 +0000 (UTC)<o:p></o:p></span></p></div><div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Hank,<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>had a quick search but couldn't find any suitable lapping<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>solution for a home builder. There were referances to thick<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>plate glass with a bonded diamond surface & marble as<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>lapping plates.<o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'>Alan<o:p></o:p></span></p></div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'><o:p> </o:p></span></p><div><div><div><div class=MsoNormal align=center style='text-align:center;background:white'><span style='font-family:"Helvetica","sans-serif";color:black'><hr size=1 width="100%" align=center></span></div><p class=MsoNormal style='background:white'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>From:</span></b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'> hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br><b>To:</b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br><b>Sent:</b> Saturday, March 7, 2015 11:29 PM<br><b>Subject:</b> Re: [PSUBS-MAILIST] Gamma ring machining</span><span style='font-family:"Helvetica","sans-serif";color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";color:black'><br><br>Alan,<br>I have been told that it would work, but I am not convinced. I would think the machined disk needs to be harder so it does not wear down. Honestly I just don't know. <br>Hank--------------------------------------------<br>On Fri, 3/6/15, Alan James via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br>Subject: Re: [PSUBS-MAILIST] Gamma ring machining<br>To: "Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>Received: Friday, March 6, 2015, 9:30 PM<br><br>So<br>do you think it would work with a flatsheet<br>rotating on your reinforcing ring?I<br>had thought of doing this with the hatch & landing,<br>toget a<br>perfect seal, not sure if I would need an orbital<br>motionor<br>not.Alan<br> <br> From: hank pronk via<br>Personal_Submersibles<br><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br><br>To: Personal<br>Submersibles General Discussion<br><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br><br>Sent:<br>Saturday, March 7, 2015 12:52 PM<br> Subject: Re:<br>[PSUBS-MAILIST] Gamma ring machining<br><br> <br><br>Alan,<br>Yes I<br>have done lapping in the past. I mostly lap valves in<br>engines. It works great on two tapered faces. <br>Hank--------------------------------------------<br>On Fri, 3/6/15, Alan James via<br>Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>wrote:<br><br> Subject: Re:<br>[PSUBS-MAILIST] Gamma ring machining<br> To:<br>"Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> Received: Friday, March 6, 2015, 6:39 PM<br> <br> Hank,are you<br> familiar with lapping?Rubbing<br><br>two surfaces together with abrasive paste in<br> betweenhttp://en.wikipedia.org/wiki/Lapping<br> Haven't<br> done it but have<br>seen it in operation; you can get a very<br><br>smoothsurface<br> with this technique. Not sure<br>if you could adapt it to your<br> newflange<br> facing machine.The<br> machine I<br>saw in operation was slow but required very little<br> attention.Alan<br> <br> <br> From: hank pronk<br>via<br> Personal_Submersibles<br><br><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> <br> To: Personal<br> Submersibles General Discussion<br> <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br><br> <br> Sent:<br><br>Saturday, March 7, 2015 12:18 PM<br> Subject:<br>Re:<br> [PSUBS-MAILIST] Gamma ring machining<br> <br> <br><br>Steve,<br> I am half way done<br><br>building my flange facing machine, I should be mostly<br>done<br> tomorrow. My rig already weighs<br>about 700 lbs. I think<br> it is important<br>that it is heavy and mine is built heavier<br><br>than the ones on YouTube. If it fails I can do as you<br> mention. I actually did exactly what you say<br>on<br> Gamma's window frames. I used paint<br>and glass with fine<br> wet sand paper. I would<br>guess the SS ring was much harder<br> than the<br>516-70 I have.<br> Hank<br><br>--------------------------------------------<br> On Fri, 3/6/15, Stephen Fordyce via<br> Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> wrote:<br> <br> <br>Subject: Re:<br> [PSUBS-MAILIST] Gamma ring<br>machining<br> To:<br><br>"Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> Received: Friday, March 6, 2015, 4:06 PM<br> <br> Hi Hank,<br> <br> <br> We used<br>a flame facing machine recently at<br> work to<br>do a<br> stainless steel flange on a<br> pressure vessel about 800mm ID.<br> We hired it<br> to use<br>ourselves at great expense, and the thing<br> <br>weighed a couple of hundred kilos, was very<br><br>solid.<br> The fitter who did the job was<br>very<br> experienced<br> <br>machinist (but hadn't used<br> one before)<br>but could not get<br> the finish<br> very smooth - I can't find photos sorry,<br>but<br> it was like regular machining grooves<br>but much<br> larger - and<br> it<br>looked pretty ordinary. He<br> spent several<br>hours with a<br> grinder cleaning<br> it up.<br> On balance, it<br>probably would have<br> been easier<br> to just flatten it manually<br><br>with a grinder (but it was on a<br> live<br> liquefied natural gas plant and they don't<br>like<br> sparks:) ). Wasn't critical to<br>get a flat<br> face as we<br> <br>were just making room for a<br> gasket in a<br>slot to have more<br> <br><br>compression.<br> After getting it pretty<br>flat<br> with a straight<br> <br>edge, the fine<br> stuff/quality control could<br>be done by a thin<br> layer of paint on a<br>known flat plate or<br> machined flange<br> which you put on the welded<br><br>flange and then where there is<br> no<br>paint<br> deposited, you know that area is too<br>low. Obviously<br> paint is no good, but<br>colored oil or 2-layered<br> carbon paper<br> (nice because then you have a<br> trace of it) would probably<br> <br>work, or<br> charcoal.<br> <br>Cheers,<br> <br> Steve<br> On 06/03/2015 11:40<br> PM,<br> "hank pronk via<br><br>Personal_Submersibles" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> wrote:<br> Brian,<br> <br> No, the machine is<br>connected<br> to the inside lip of the<br> ring. The<br> machine rotates<br>on a center pivot. The cutter<br> rotates<br>instead of the part.<br> <br> <br> Hank<br> <br><br><br><br>--------------------------------------------<br> <br> On Thu, 3/5/15, Brian<br>Cox<br> via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> wrote:<br> <br> <br> <br> <br> Subject: Re:<br> [PSUBS-MAILIST] Gamma ring<br>machining<br> <br> To:<br>"Personal Submersibles General<br><br>Discussion"<br> <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> <br> Received: Thursday,<br>March<br> 5, 2015, 9:15 PM<br> <br><br> <br> <br> <br> Hank, are you going to<br> be<br> <br> turning the whole<br> fricking sub ?<br> <br> <br> <br> <br> Brian<br> <br> <br> <br> --- <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br> <br> wrote:<br> <br> <br> <br> <br> <br> From:<br>hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br> <br> To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a><br> <br> Subject:<br>[PSUBS-MAILIST]<br> Gamma ring machining<br> <br> <br> Date:<br>Thu, 5 Mar 2015 18:00:24 -0800<br> <br> <br> <br> <br> Today my<br> welder came to my shop and<br>welded the<br> <br> reinforcing<br> <br> ring into<br> Gamma, 10 passes, looks perfect!<br> <br> <br> <br> Next<br> step, machine the<br>ring. I am going to make a<br> <br> flange facing machine from<br> a one ton truck full<br> <br> <br> floater differential hub<br>and a part or two borrowed<br> from<br> my<br> <br> <br> spare lathe. The rig will be hydraulic<br>drive. <br> <br> This may<br>or may not<br> work. :-) If it works and<br>I<br> <br> am confident it<br>will, I can also face CT<br> lands, with the<br> CT<br> <br> <br> welded in place.<br> <br> <br> Hank<br> <br> <br><br> _______________________________________________<br> <br> <br> Personal_Submersibles<br> mailing list<br> <br> <a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br> <br> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br> <br> <br> <br> <br> <br> <br><br> _______________________________________________<br> <br> <br> Personal_Submersibles<br> mailing list<br> <br> <a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br> <br> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br> <br> <br> <br> 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